Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d52d2cc9d3b3705…

MALICIOUS

PDF

54.3 KB Created: 2020-08-10 06:40:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 662abe10752ab368e8e96a0f4ad3f172 SHA-1: bbf0e886ce698213f3ba43374f6cb25701a2d30b SHA-256: 4d52d2cc9d3b3705ef62ac84322d38b017bc40a9609b91b0723567b511e0d586
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=spotify+agile+framework+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, also contains the primary malicious URL. This suggests the document's primary purpose is to lure users to a malicious site.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=spotify+agile+framework+pdf
    • http://ralepij.saintgeorgechurchok.org/uploads/1/3/0/8/130874359/tixuxanesal.pdf
    • http://files.graphicsadp.com/uploads/1/3/2/7/132712268/nebino-fubamuwe-tozetufa-pagut.pdf
    • http://files.mrogrady.com/uploads/1/3/1/4/131453453/fadiwigu-vozasivisimef-pafanisepafi-zisiwerox.pdf
    • http://pobokik.thierrymontoya.net/uploads/1/3/2/8/132814930/054892906.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/96161450444.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/vodetuzewufapuvupabod.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/ferutirolozoxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/jejudavitivesusegekur.pdf
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/oracle_academy_java_programming.pdf
    • https://cdn.shopify.com/s/files/1/0437/2863/4010/files/savan.pdf
    • https://cdn.shopify.com/s/files/1/0428/2351/6323/files/ansi_c_standard_library.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8871/files/paresigifirojape.pdf
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/sita_bursary_applications_2020_academic_year.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/11662767565.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/saniwe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009589.bin
61baebca2b23ed2a3bdde2ed92e97853a048f08944e2f125f59d853fbc4accb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9589 5544 bytes
font_01_sfnt_off0000a873.bin
f042f2f0ade0245c6045f227121ee3bd20bfe4a63d2439316db7f752a43506df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA873 10420 bytes

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